Libation - The House of Atreus trilogy, by Aeschylus. The only example of a complete Greek tragic trilogy which has come down to us, consisting of the "Agamemnon," the "The Libation-Bearers", and the "The Furies". The importance of Aeschylus in the development of the drama is immense. Before him tragedy had consisted of the chorus and one actor; and by introducing a second actor, expanding the dramatic dialogue thus made possible, and reducing the lyrical parts, he practically created Greek tragedy as we understand it. The Oresteian trilogy on "The House of Atreus" is one of the supreme productions of all literature. It deals with the two great themes of the retribution of crime and the inheritance of evil. This contains part of the trilogy, The Libation-Bearers.